Laserfiche WebLink
NOY 01 '95 1.1-50AM CLEARWATER GROLP P.2t3 <br /> t , <br /> CLEARWATER <br /> G R 0 U P, I N C. <br /> No— <br /> Ms.Mary Meays November 1, 1945 <br /> San Joaquin County Public Health Services <br /> Environmental Health Department <br /> P. 0.Box 388 <br /> Stockton,CA 95201-0388 <br /> Re: Ruiz Grocery, 4491 Durham Ferry road, Tracy <br /> Dear Ms. Ways, <br /> The purpose of this letter is to provide you with a status update regarding activities <br /> at the referenced location. The groundwater sampling event was completed on <br /> October 19. I am currently waiting for the results of sample analysis to be forwarded <br /> by the lab. As the long-awaited pilot test should be under way in the near term, I <br /> would like to include the results of this sampling event in a combined <br /> Sampling/Pilot Test Results Report. Leet me ]snow if you would rather see the <br /> results of sampling in a separate transmittal. <br /> Speaking of the pilot test, I requested that the Clearwater field scientist that visited <br /> the Ruiz site on October 19 take a moment to check on the potential yield status of <br /> the recovery well. As you recall, the well did not appear capable of producing a <br /> significant quantity of groundwater before or immediately after development. As a <br /> result of these observations, modifications were made to the originally proposed <br /> scope of pilot testing work. Regardless of plans in the original and modified testing <br /> plan, I felt it prudent to take a moment to confirm that the well would continue to <br /> yield only a low sustained flow of water. <br /> The results of the recent visit were unexpected. The recovery well appeared capable <br /> of providing approximately 1-2 gallons of water a minute. Evers.considering all we <br /> have gone through to get to this paint, I think it would be wise to reconsider some <br /> of the elements of the planned test. The elements of reconsideration, as I see it, are <br /> as follows: <br /> ,X a As the recovery well now. seems capable of producing enough water to conduct a <br /> \��`1' f' more standard pumping test (without an applied vacuum), I believe it would be <br /> appropriate to re-include such an activity into the considered scope. <br /> • As the utility, of a combined soil/vapor remedial approach is still worth <br /> considering, a portion of the test should remain dedicated to the dual phase test <br /> we described in the workplan addendum. Considering the observed recovery <br /> 1125 Atlantic Aver=+Suite 102 a Akmv&+California-%M1-(510)337-8730-Fax(510)5M'-0984 <br />